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  • 1975-1979  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta mechanica 24 (1976), S. 209-217 
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Nach einem kurzen Überblick über die Theorie der Spannungsfunktionen in der dreidimensionalen Elastostatik werden die Überlegungen auf Probleme der Elastodynamik erweitert. Das Tensorfeld der Spannungen wird mit Hilfe des Krümmungstensors eines vierdimensionalen Riemannschen Raumes beschrieben, in welchem die Komponenten des Maßtensors als Spannungsfunktionen verwendet werden. Als Sonderfälle erhält man die Darstellung des Spannungsfeldes in Nähe bewegter Versetzungen und die Erweiterungen der Moreraschen und Maxwellschen Spannungsfunktionen.
    Notes: Summary After a brief review on a theory of stress and stress functions in three-dimensional elastostatics, the author attempts to extend his consideration into the problem of elastodynamics. The stress is represented by the Riemann-Christoffel curvature tensor of a four-dimensional Riemannian space having the stress functions as the components of its metric tensor. From this basic recognition, a representation for stresses by ten stress functions is given. As one of the special cases, the expression for the stress the author used in the analysis of stress fields by moving dislocations is derived. Elementary expressions of the forms which are extensions of Morera's and Maxwell's stress functions are also derived from the general principle.
    Type of Medium: Electronic Resource
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